Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA
Issued by NWS San Joaquin Valley, CA
941 FXUS66 KHNX 072332 AFDHNX Area Forecast Discussion National Weather Service Hanford CA 432 PM PDT Sat Jun 7 2025 .UPDATE... Aviation and Air Quality Updated && && .KEY MESSAGES... 1. Expect gradual warming today into next week; Moderate Heat Risk lasts into the middle of next week. 2. There is a 15 to 25 percent chance for thunderstorms in the Sierra Nevada this afternoon. Slight (10-20%) chances for thunderstorms continue on Sunday and Monday. && .DISCUSSION... High pressure continues to prevail over our area with an upper- level trough and associated low off the Central CA coast. Expect slightly warmer temperatures today and a gradual warming into early next week. High temperatures in the warmest locations will reach the upper-90s today, and a few locations, such as in the Indian Wells Valley in northeastern Kern County, reach into the triple digits. Thunderstorms in the Sierra Nevada have generally a 15-25% chance of development this afternoon and will likely dissipate by the early evening. Slight (10-20%) chances for afternoon thunderstorms continue on Sunday into Monday. Otherwise, dry conditions prevail throughout our portion of Central CA. High temperatures will continue to warm Sunday through the middle of the week. More locations can expect to reach triple digits by at least Monday. Chances for triple digit heat from Monday until Wednesday range from 30-70 percent in the SJ Valley and also about 30-70 percent for highs to reach or top 105 in the Kern County desert, with the best chances towards Ridgecrest/Inyokern. Afternoon humidity will also remain quite low in these hot spots and could lower a bit by the middle of the week. A low to moderate risk for grass or brush fires exists. Practice cold water safety if venturing into the lakes and waterways, as water continues to flow cold and fast! Milder temperatures are in store for later next week into the following weekend. Highs may struggle to top 90 degrees in some valley locations on Friday into next Saturday, as chances are at 50-90 percent for a high below 90 degrees. For now, the latest CPC outlooks show mainly near average temperatures for both the 6-10 day and 8-14 day periods. Highs in the lower 90s are average for this time of year, including by mid June. && .AVIATION... 0Z Update: VFR conditions will prevail for the next 24 hours across the Central California Interior. A 15-25 percent chance of thunderstorms exists in the Sierra Nevada until 03Z Sunday. && .AIR QUALITY ISSUES... ISSUED: 06/07/2025 13:43 EXPIRES: 06/08/2025 23:59 None. && .CERTAINTY... The level of certainty for days 1 and 2 is high. The level of certainty for days 3 through 7 is medium. Certainty levels include low...medium...and high. Please visit www.weather.gov/hnx/certainty.html for additional information and/or to provide feedback. && .HNX WATCHES/WARNINGS/ADVISORIES... None. && $$ public...BSO aviation....JPK weather.gov/hanford